6.5-300 Weatherby Magnum

6.5-300 Weatherby Magnum
Type Rifle
Place of origin USA
Production history
Designer Weatherby
Designed 2016
Manufacturer Weatherby
Produced 2016
Specifications
Parent case .300 Weatherby Magnum
Case type Belted, bottleneck
Bullet diameter .264 in (6.7 mm)
Shoulder diameter .4949 in (12.57 mm)
Base diameter .512 in (13.0 mm)
Rim diameter .5315"
Case length 2.825"
Overall length 3.600"
Rifling twist 1-8"
Primer type Large rifle magnum
Ballistic performance
Bullet mass/type Velocity Energy
127 gr (8 g) LRX 3,531 ft/s (1,076 m/s) 3,516 ft·lbf (4,767 J)
130 gr (8 g) Scirocco 3,476 ft/s (1,059 m/s) 3,487 ft·lbf (4,728 J)
140 gr (9 g) A-Frame 3,395 ft/s (1,035 m/s) 3,583 ft·lbf (4,858 J)
Test barrel length: 26
Source(s): Weatherby[1][2]

The 6.5-300 Weatherby Magnum is a 6.5mm cartridge created by Weatherby in 2016 as its own rendition to the ever growing 6.5mm long range rifle market.[2]

Background

As the newest in Weatherby's lineup this cartridge is designed to be in direct competition to the 26 Nosler.[3] Designed in a similar fashion as other Weatherby cartridges it has a large for caliber case capacity resulting in high velocities. When bullets with high ballistic coefficients are used trajectories are extremely flat, allowing the projectile to retain a significant amount of energy downrange. These attributes make the 6.5-300 quite effective for long range hunting on medium sized game.

Currently Weatherby is the only manufacturer of rifles chambered in the 6.5-300 Weatherby Magnum, as well as the only current supplier of ammunition. Although cases could theoretically be formed from 300 Weatherby brass. Due to the lack of availability of firearms and high cost of factory ammunition this round is currently out of the realm of the average hunter or marksmen.

Performance

Claimed by Weatherby to be the fastest 6.5mm cartridge available.[4]

The 6.5mm-300 Weatherby is considered overbore and as such has a shortened barrel life compared to more moderate cartridges.[5]

See also

References

  1. ↑ http://www.weatherby.com/6-5-300-wby-mag.html
  2. 1 2 http://www.americanrifleman.org/articles/2016/10/20/the-new-65-300-weatherby-magnum-and-mark-v-rifle/
  3. ↑ Snow, John B. (September 29, 2016). "First Look: New 6.5-300 Weatherby Magnum Cartridge". Outdoor Life. Retrieved November 7, 2016.
  4. ↑ http://www.weatherby.com/products/ammunition/cartridges/6-5-300-wby-mag.html
  5. ↑ Merkley, Smokey (February 8, 2016). "The 6.5-300 Weatherby Magnum hits hard". Idaho State Journal. Retrieved November 7, 2016.


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